Attachment for account-books.



PATENTED DEC. 6, 1904.

H. BGGBRSGLUSS.

' ATTACHMENT FOR AOGOUNT BOOKS.

APPLICATION FILED APR, 23 1904.

NO MODEL.

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Patented December 6, 1904.

PATENT OFFICE.

HEINRICH EGGERSGLUSS, OF DRESDEV, GERMANY.

ATTACHMENT FORVACOOUNT-BOCIJKS.

SPECIFICATION forming part of Letters Patent No. 776,651, dated December 6, 1904.

Application filed April 28, 1904. Serial No. 204,524- (No model.)

To all whmn/ it may concern."

Be it known that I, H EINRICH EeennsoLUss, a subject of the Emperor of Germany, and a resident of Dresden, Germany, haveinvented a certain new and useful Attachment for Account-Books; and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to a device for use in copying the items from one account-book into another. The new book-mark serves to point out or indicate the item to be transferred or the column in which the item is to be booked. The device can be firmly attached to books of any size and thickness, while at the same time admitting of being readily removed after use.

My invention is shown in the accompanying drawings, in Which Figure 1 is a lower edge view of part of an account-book provided with my device. Fig. 2 is a plan view of the device with parts broken off; Fig. 3, a side view of the device as shown in Fig. 1, partly in section.

(It is a tube within which slides a rod 71. c is a spiral spring surrounding this telescopic device and secured at one end to the rod and at the other end to the tube.

(Z (Z are two small plates or jaws screwed to the rod and tube, respectively. In this manner an extensible spring-controlle ;l device is formed, the terminal-plates (Z of which constitute clamps whereby the device can be attached to books of any dimensions, the clamps (Z pressing firmly against the edges of the superposed leaves at the top and bottom of the page. The plates (Z may be prevented from sliding out of place by means of springs, rubber cushions, linings, or the like 7t, applied to them on the inside. The plates may also carry inwardly-projecting pins 0 or the like, acting as stops to prevent the device from being pushed down too far upon the book.

g is a rule made of flexible material, such as thin sheet-steel, celluloid, or the like, secured to the lug of a sleeve f, through which passes the extensible device (0 7) 0. The rule y can thus be slid upon the latter and also turned over from one page to the opposite one. To impart more elasticity to the rule and to ad mit of its fitting closely to the curved shape assumed by the leaves of the opened book, it is made thinner at the sleeve end.

In the case of the device being intended for indicating items and lines the rule is employed without any inscription or the like on it. It has merely to be adjusted directly above or below the horizontally-running item which has to be transferred. In copying entries a glance is then sufficient to find the item again. so that errors are impossible. It used for pointing out columns, however, the rule must be provided with inscriptions corresponding to the columnheadings of the book, so that the column in which the entry is to be booked may be readily found. For this purpose the rule may be made double, so that there is a limb on both pages of the open book, each limb being provided with inscriptions corresponding to the headings of the columns on the respective page. This double rule is secured at the center to the extension device a B 0, so as to slide upon the latter similarly to the single rule, and, like the latter rule, should be made thinner at the middle portion, so that it may adapt itself readily to the rounded form assumed by the pages of the book when open.

hat I claim is 1. An account-book attachment, comprising in combination, two telescoping members, a spring helically wound around the said telescoping members and controlling the relative movement of the said telescoping members, jaws secured at the outer end of each of said members and adapted to press against the edges of the book, and an indicating member sliding upon the said helical spring, substantially as described.

2. An account-book attachment, comprising in combination, two telescoping members, a helical spring wound around said two members, jaws secured at the outer end of each of the said members and adapted to clamp the book, and a flexible rule, the inner portion of which is thinner than the outer portion, sliding upon said helical spring, substantially as described.

3. An account-book attachment, comprising in combination, a tube, a rod sliding therein, a helical spring Wound around said telescoping members and secured at one end to the 5 tube and at the other end to the rod, plates attached to the outer end of the tube and rod respectively, stop-pins and elastic means on said jaws for keeping the device in proper position relative to the book, and an indicating member sliding upon said helical spring, I O substantially as described.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing Witnesses.

HEINRICH EGGERSGLUSS.

Witnesses:

FR. H. LEHNERT, PAUL E. SCHILLING. 

